This article will explore how patent litigation in Japan has changed and will also compare and contrast aspects of patent litigation in the U.S. and Japan.

In Part II, we show recent statistical data on Japanese patent infringement litigation. Parts III and IV briefly review the Japanese judicial system and legal professionals in the area of intellectual property. Part V addresses patent-infringement actions in Japan and the recent amendments of the Code of Civil Procedure and the Patent Law. Next, Parts VI and VII discuss infringement analysis and possible defenses in patent-infringement litigation. Part VIII reviews how to calculate the amount of damages in patent litigation in Japan. Finally, Part IX discusses provisional injunctions in Japan.